#include <stdio.h>
int main() {
    int a[15] = {1,2,3,4,5,6,7,8,9,10,11,12,13,14,15};
    int key, *p = a, i;
    scanf("%d", &key);
    for (i = 0; i < 15; i++, p++) 
	{
        if (*p == key) 
		{
            printf("%d\n", i + 1);
            return 0;
        }
    }
    printf("No Found\n");
    return 0;
}